18 Rockwell Automation Publication 20B-IN017B-EN-P - September 2011
Chapter 1 Component Diagrams and Torque Specs
Torque Specifications
The following table lists fastener locations by component, how the fasteners are
used, and torque specifications. Refer to Tor q u e S e q u en c e
in this chapter for
fastening two-point, four-point, and six-point components to the heat sink.
Component Fastener Application
Torque
lb•in
Torque
N•m
Fan Motor Motor to Fan Cover Assembly 14 2
Fan Cover Assembly Assembly to chassis 26 3
Fan Transformer Transformer to chassis 26 3
Fan Capacitor Capacitor to chassis Hand tighten
MOV Surge Suppressor MOV to chassis 14 2
Inverter Snubber Resistor
Resistor to heat sink Initial sequence: 6 0.7
Final sequence: 26 3
Inverter Snubber Resistor Wires to Capacitor Bus Bar Assembly 50 6
Inverter Snubber Bracket Bracket to Power Module 80 9
Inverter Snubber Board Board to Brackets 50 6
Converter Snubber Board Board to Input Rectifier 50 6
Balancing Resistor
Resistor to heat sink Initial sequence: 6 0.7
Final sequence: 26 3
Balancing Resistor Wires to Capacitor Bus Bar Assembly 50 6
Heatsink Thermal Sensor Thermistor to heatsink 14 2
Bus Capacitor Holder Holder to Bus Capacitors 26 3
Capacitor Bus Bar Assembly Assembly to Bus Capacitors 50 6
Gate Interface Board Board to Power Modules 14 2
Inverter Power Module (IGBT) Bus
Bar
Bus Bar to Power Modules 80 9
Inverter Power Module (IGBT)
Module to heat sink Initial sequence: 6 0.7
Final sequence: 32 3.6
DIN Rail (TB1) Rail to chassis 50 6
PE Shortening Bar Bar to TB1 80 9
Converter Power Module (SCR)
SCR to heat sink Initial sequence: 6 0.7
Final sequence: 50 6
Transitional Bus Bar Assembly Assembly to Power Module Bus Bar Assembly 80 9
Bus Fuse F1 Fuse to Transitional Bus Bar 80 9
DC Bus Inductor L1 Inductor to chassis 50 6
Bus Bar Cable Adaptor Adaptor to Transitional Bus Bar and DC Bus
Inductor
80 9
Converter Bus and Motor Bus Bars Bus Bars to all connections 80 9
Wires (PE) Wires to Ground Stud 80 9
Wires Wires to TB1 80 9
Wire (TE) Wire to TB1 50 6
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